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High Temperature Combustion Diagnostic Method Utilizing Rayleigh Scattering 

Aerodyne Research, Inc. 

Billerica, MA
 

A Dual-Line Detection Rayleigh scattering technique using a copper vapor laser for non-intrusive temperature measurements in combustor flows

• Developed a Dual-Line Detection Rayleigh scattering technique to allow subtraction of surface scattering  background noise from Rayleigh scattering signals
• Designed and tested an instrument using this Rayleigh scattering technique for non-intrusive measurement of combustor exhaust gas temperatures 

• Provides a non-intrusive tool for dynamic time resolved measurement of gas turbulence and temperature
• Technique could be used in research for density measurement and mole fraction of gases
• Research test data is available to industry

• System was delivered to NASA Glenn Research Center where it was successfully used on a research combustor
• The technique and research results were passed-on to Polytechnic University and Air Force Wright Laboratories for use in temperature and turbulence studies of gas flows and for further development of the technique

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Curator: SBIR Support              6/16/05